Earthquake · southern East Pacific Rise
M6.6 earthquake near southern East Pacific Rise
A magnitude 6.6 earthquake struck southern East Pacific Rise on 20 May 2026 at 17:43 UTC, at a depth of 10 km.
- Magnitude
- 6.6 mww
- When
- 20 May 2026, 17:43 UTC
- Depth
- 10 km
- Location
- 56.00° S, 122.30° W
- Felt reports
- 7 people told USGS they felt it
- USGS PAGER alert
- Green
- Source
- USGS event page
What it means
A magnitude 6.6 is a strong earthquake; there are about 130 a year worldwide, and they can cause damage in populated areas near the epicentre. At 10 km deep it was a shallow earthquake, which usually means stronger shaking near the epicentre.
The magnitude may be revised as more data comes in. Read Earthquake magnitude explained for what the numbers mean.
Aftershocks
2 earthquakes of magnitude 4 or more within 150 km in the 30 days after; the largest was a magnitude 5.5.
| Mag | Where | When (UTC) |
|---|---|---|
| 5.5 | southern East Pacific Rise | 20 May 2026, 18:36 |
| 4.7 | southern East Pacific Rise | 1 June 2026, 21:51 |
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